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Fossils

Bonnie Branch 6th grade - Fossils

TermDefinition
Fossil Remains or traces of an organism that lived long ago
mold imprint or hollow in rock that is shaped like and made by an organism
cast mold filled with hardened sediments
amber hardened tree sap
coprolite fossil dung or the stomach content of ancient animals
gastrolith stone used to grind food
law of superposition states that each undisturbed sedimentary rock layer is older than the layer above it
relative age age of an object compared to the age of another object
index fossil fossil used to help determine the relative age of rock layers
Created by: kjanelli
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